1. U. Bardey, Abhängigkeitsanalyse für Programm-Transformationen. Diploma Thesis, CS Dept. III, University of Bonn, Germany, February, 2003 (in German)
2. Extreme Programming Explained: Embrace Change;Beck,1999
3. Planning Extreme Programming;Beck,2000
4. P.I. Bergstein, Managing the Evolution of Object-Oriented Systems. Ph.D. Thesis, North Eastern University, Juni 1994
5. J. Bézivin, E. Breton, G. Dupé, P. Valduriez, The ATL transformation-based model management framework, 2003 (submitted for publication)